Diff: senml_base.cpp

Revision:

0:a9259748d982

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/senml_base.cpp	Sat May 19 17:35:20 2018 +0000
@@ -0,0 +1,72 @@
+
+/*  _  __  ____    _   _ 
+ * | |/ / |  _ \  | \ | |
+ * | ' /  | |_) | |  \| |
+ * | . \  |  __/  | |\  |
+ * |_|\_\ |_|     |_| \_|
+ * 
+ * (c) 2018 KPN
+ * License: MIT License.
+ * Author: Jan Bogaerts
+ * 
+ * base class for all senml objects
+ */
+
+
+#include <senml_base.h>
+#include <senml_pack.h>
+
+
+SenMLBase::SenMLBase(): _prev(NULL), _next(NULL)
+{
+}
+
+SenMLBase::~SenMLBase()
+{
+    if(this->_prev)
+        this->_prev->setNext(this->_next);
+    if(this->_next)
+        this->_next->setPrev(this->_prev);
+    
+}
+
+void SenMLBase::setNext(SenMLBase* value)
+{
+    if(value == NULL){                                              //if next becomes null and there is a root, then this object became the last in the list, so let the root know.
+        SenMLPack* root = (SenMLPack*)this->getRoot();
+        if(root)
+            root->setLast(this);
+    }
+    this->_next = value;
+}
+
+ void SenMLBase::setPrev(SenMLBase* value)
+ {
+     this->_prev = value;
+ }
+
+SenMLBase* SenMLBase::getPrev()
+{
+    return this->_prev;
+}
+
+SenMLBase* SenMLBase::getRoot()
+{
+    SenMLBase* prev = this->_prev;
+    while(prev){
+        SenMLBase* newPrev = prev->getPrev();
+        if(newPrev == NULL)
+            return prev;
+        else
+            prev = newPrev;
+    }
+    return this;                                    //if there was no first prev, it means we are root.
+}
+
+
+
+
+
+
+
+